Burst pipe water damage across Louisiana homes

Supply pipes carry water under pressure from the street to every fixture in the house. When one splits, or a fitting lets go, the water does not trickle; it sprays and pours until the valve is shut. In a ceiling it pools on top of the drywall until the board sags or the water finds a light fixture or seam. In a wall it runs down inside the cavity, soaking insulation and the bottom plate. Under a sink it spreads across the cabinet floor and out under the flooring.

Gravity and capillary action decide the path. Water runs down studs and pipes, along the tops of ceiling joists and under wall plates into neighboring rooms. It wicks up drywall and into the cores of cabinets and baseboards. That is why the damage you can see is often only part of the story, and why contractors trace the leak with meters and thermal cameras instead of drying only the obvious puddle.

The good news is that supply-line water is usually clean when it leaves the pipe, which restorers call Category 1. Under the ANSI/IICRC S500 standard, clean-water losses caught early give the most options for drying materials in place rather than removing them ^[1]. The bad news is that clean does not stay clean: water that sits for days in a warm house, or runs through dirty cavities and across floors, can become more contaminated over time.

Pipe leaks also differ by cause. A sudden split from freezing, a corroded fitting, a failed water heater, a chewed or kinked ice-maker line and a burst washing machine hose are all supply-side failures. A leaking drain, toilet overflow or dishwasher discharge is different, because that water carries waste and soap, so the contractor needs to know which it was.

Freezing is the cause most people think of, and it does happen here, especially in north Louisiana and in homes with pipes in attics, exterior walls or under raised floors. Water expands as it freezes, and the pressure splits pipes and fittings. The break often stays hidden until the thaw, when water begins to flow again and pours out of the crack.

But many Louisiana pipe failures have nothing to do with cold. Older homes may still have galvanized steel lines that corrode from the inside, or early plastic plumbing that has become brittle. Water heaters wear out and leak from the tank or the fittings, often in attics or closets above finished rooms. Rubber washing machine hoses and plastic ice-maker lines crack with age. And in slab homes, lines buried in or under the concrete can leak slowly for months before anyone notices.

Movement plays a part too. Much of south Louisiana sits on soft soils that settle and shift, and the land in parts of the New Orleans area has been sinking for decades ^[4]. Ground movement stresses pipes, especially where they pass through a slab or connect to a sewer line, which can lead to cracked joints and slow leaks.

Expect questions first. Where was the break? Was it hot or cold water? When did it start, and when was the water shut off? Is this a supply line or a drain? Those answers help the contractor understand the water category and where to look. Then they walk the area with meters, often starting at the break and working outward and downward.

They will look in places you might not think of: the room on the other side of the wall, the closet behind it, the cabinet next to it, the ceiling below on a second floor, and under flooring that looks fine. Thermal cameras show cold, wet areas as different colors, but meters confirm what the camera suggests.

Before work begins, ask them to show you what they plan to open or remove and why. A good contractor will try to dry in place where clean water and quick action allow, and will open walls or ceilings only where water is trapped. Ask them to photograph and measure anything removed, for your insurer.

In raised homes, common in older New Orleans neighborhoods and many rural parishes, supply lines often run under the floor in the crawlspace. They are easy to reach for repair but exposed to cold in a hard freeze. Water from a leak there may never come into the living space at all, instead soaking the ground and the underside of the floor. Crawlspace drying deals with that.

In slab homes, typical of the suburbs around Metairie and Kenner, Baton Rouge and the Northshore, lines may run through the attic, inside walls or under the concrete. Attic lines and water heaters are a major source of ceiling damage, and slab leaks can go unnoticed for a long time. Shifting soils in parts of south Louisiana add stress to lines that pass through the slab.

In north Louisiana, around Shreveport and Bossier City, winter cold snaps are more frequent and more severe than on the coast, so frozen pipes are a bigger share of calls. Pipes in exterior walls, garages and unheated spaces are most at risk.

A burst pipe is two problems: the pipe and the water. A licensed plumber fixes the pipe, finds hidden leaks and checks that the system holds pressure. A water damage contractor deals with everything the water touched. Sometimes one company does both, but often they are separate trades, and that is fine as long as they coordinate.

The order matters. The leak must be stopped before drying makes sense, but drying should not wait for the plumber's final repair if water can be kept off. If a wall has to be opened to reach the pipe, the plumber and the water damage contractor can often use the same opening. Ask each of them to explain what they are doing and to document it, because your insurer may treat the repair and the water damage differently.

Homeowners policies commonly cover sudden and accidental water damage, such as a pipe that splits without warning. They often treat slow, long-term leaks differently, and they generally do not pay to repair the failed pipe itself. Wording varies, so read your policy and report the leak quickly.

Good records help any claim. Keep photos, the plumber's invoice describing what failed, the water damage contractor's moisture readings and a list of damaged items. Our guide to working with your insurance adjuster explains what to expect from the process. If the plumber keeps the failed section of pipe or fitting, ask for it or photograph it; the cause of the failure can matter when the claim is reviewed.